Fixes crossDomain test so that it assumes port to be 80 for http and 443 for...

Fixes crossDomain test so that it assumes port to be 80 for http and 443 for https when it is not provided.

src/ajax.js

@@ -317,6 +317,7 @@ jQuery.extend({
 			timeoutTimer,
 			// Cross-domain detection vars
 			loc = document.location,
+			protocol = loc.protocol || "http:",
 			parts,
 			// The jXHR state
 			state = 0,
@@ -629,9 +630,10 @@ jQuery.extend({
 			parts = rurl.exec( s.url.toLowerCase() );
 			s.crossDomain = !!(
 					parts &&
-					( parts[ 1 ] && parts[ 1 ] != loc.protocol ||
+					( parts[ 1 ] && parts[ 1 ] != protocol ||
 						parts[ 2 ] != loc.hostname ||
-						( parts[ 3 ] || 80 ) != ( loc.port || 80 ) )
+						( parts[ 3 ] || ( ( parts[ 1 ] || protocol ) === "http:" ? 80 : 443 ) )
+							!= ( loc.port || ( protocol === "http:" ? 80 : 443 ) ) )
 			);
 		}